Pumping apparatus



April 2, 1929. F. E. CARLBERG PUMPING APPARATUS 2 Sheets-Sheet /FiledFeb. 17

| I.; IIIIIIIII A f i I l l INVENToR. Fmuwmuv BY .4 TTORNEY.

Ull

Patented Apr. 2, 19269.A

UNITED STATES 1,707,707 lPATENT OFFICE.

FRANK EARNEST CARLBERG, or PLEASANTVILLE, PENNSYLVANIA.

PUMPING APPARATUS.

Appueamn med February 17, 192s. Yserial No. 255,115.

in which a working barrel provided with aV reciprocating pumping plungeris provided.

Heretofore in pumping apparatus of this general character the pumpinghas been effected by the .employment of check valves in combination withcup washers which are reciprocated within the working barrel or casingand carry the entire weight of the column of liquid. These cup Ywasherssoon become worn and require frequent replacement. In accordance with myinvention, the use of cup washers forrpumping is obviated.

In my improvedpumping apparatus I provide a compressible packing memberwhich is carried by the reciprocating pump plunger and moves within theworking barrel.

It is a specific object of the invention to provide a structure forpermitting the adjustment of the packing member at any position in thestroke of the reciprocating plunger.

It is furthermore an object'of the invention to seal the working barrelagainst the admission of liquid from the well casing above the workingbarrel and thusrelieve the load carried by the reciprocating pumpingelement.

The invention has for its broader object the provision of animprovedpumping apparatus which can be economically constructed and which may beoperated with eliciency for prolonged periods without necessitating theremoval of the working barrel and asso-- 'ciated elements.V

In the drawings forming part of this specification,

Figure 1 1s a side elevational view with parts shown in section of myimproved pumping apparatus, showing the same in position within a` well;

Fig. 2 is a V detailed upper end of-the upper working barrel; v

Fig. 3 is a detailed. sectional view of the lower end of the lowerworking barrel, show- Y ing the associated check valve; f

Fig. 4 isa detailed sectional view of they reciprocating' hollow plungerwith its associated check valves and pump packing;

sectional view of they Fig. 5 is a detailed'sectional view of the lowerend ofthe upper working barrel, showing the .manner in which the sameseats on the lower working barrel, and

vFig.'6 isa detailed cross sectional View i taken onthe llne 6 6 ofFigure 5.y

The well casing 1 is adapted to receive and have lowered therein, theupper working barrel 2. The casing 1 carries at its lower end the lowerWorking barrel 3, which is secured to the casing through the medium of ascrew-threaded lcollar 4. Positioned below the lower working barrel 3and carried thereby, 1s a perforated pipe section 5, from whichtheliquid isv admitted to the working 'barrel through the medium of theball check valve 6, shown in detail in Figurev 3. This check v Y valve 6permits therfiuid fromthe well to enter the lower Working barrelwhilepre venting its return back into the well. The check valve 6 is held inposition within the working barrel 3 by a plurality offrictiofn cupwashers 7 andV is also provided with a Suitable cage 8 vfor limiting themovementY of the ball valve member. The cage 8, it will member 10, seeFig. 5, which threadedly engages the inner surface ofthe lower end ofthe upper working barrel 2, as Vshown at 11. This closure member10,'seats on the upper end of the lower LWorking barrelv 3, as shown at12 and supports the upper working barrel 2, rIhis closure member. 10 isinteriorly threaded at 13, and has threaded therein Vthe downwardlyprojecting tube 14 which is adapted toreceive the annular washeror e0 benoted, carries a threaded neck 9,for receivv collar 15 on its lower end.Intermediate the closure member 10 and the collar 15-the tube 14carriesalternatelydisposed friction cup washers 16 and s acing metalliccollars 17. It Vwill be noted t at the tube 14 projectsa considerableldistance into the lower workand the ower working barrel 35h 'fixed-rek;

tion.- The arrangementis such that the upper Working barrel '2 can beremoved from the Well should such action be necessitated. The upper endof the upper Working barrel 2 is interiorly threaded to receive .the.annular closure member 18, note Figure '2. The upper end of the barrel2 is also cut away to provide the shoulder 19 upon Which rests theWasher or collar 20. A similar Washer `or colla-r :21 is providedimmediately belovv the closure member 18 while compressible packingmaterial 22 .fis positioned between :the collars 20 and 21. Thearrangement is .such that rotation `of the closure member 18 W-illrelease for compress .the .packing between the collars and 21. dependingupon the direction `ol: rotation of the closure `:member 18. iltWill-thus be seen that :a very effective packing member is .provided atthe upper :end -ot the upper Working barrel. i f

Thus -far 'only 'the parte of the pumping apparatus which normallyVremainy relatively fixed, have 'been -describedz I will lnow describethe movable elementsof the apparatus. The reciproca-ting'pump rod 23extends d'owvn into the Well casing 1 from the surface Whereits upperend is .held .against rotation .f

but tree vfor .-reciprocation by conventional mechanism. The rod 23connects with the 'valve cage 24 secured to theiupper holloyv section'25ofthe pump plunger. The plunger section 25 removably car-ries at itsupper end the 'ball valve '-Seat`26 (Fig. '2), on yWhich the ball checkvalve 27 -is Vadapted to seat.' The upper plunger. section 25reciprocates Within the stuffing box oint for-med by the Vclosure 18.,Washers y2@ vand 21, andthe packing 22, which joint :effectively sealsythe uLppe-r end of the Work-ing barrel 2. It will be :observed that theclosure'member 18 supports the load or Weight -o .the dcolumn of liquidvvithin the 'casing 1. Y, Y

, The lowerend of the plunger section 25fis threaded :and receives theupper part 28v of a checli'valve .casing indicated 4geneialy at A (Fig.The ilewerpasrt 29 of this check valve :casing is thread'edly secu-redtothe upper 'part 28, as shown at A30. The loiver part v29 carries theremovable 'ball valve seat 31, on which is Vlseated the ball valve 32,hunted in its vertical movement by the Ycross pin '33. Y Theloaverlparrt29 ofth'is valve VVcasing C Cil .A has openings '34; topermit-the passage ot' liquid i'iirom the Working'barrel 2 into theinterior f oppositely fora purpose/"to fbe at Aits lowerfendzthe'upper`partSS otacheck valve casing indicated .generally .atB `Due nYtothe1oppositely.threaded ends 36 and `3.7' of K tbe-sentieri 375V, itwill be .appreciated :that mela."-

V t the reciprocating plunger.' The. part29 1s interior-ly.threaded and`receives the Y upperend oi' ythe intermediate "hello-W plunger tiverotation between the lower part 29 of valve casing A and the upper part8810i valve casing B will cause the parts 29 'and 38 to both lmovetoward each other or recede from each .othery .depending upon the.direction of rotation. l

Y The lower part 39 of Valve casing B threadedly engagesthe upper part38 yat 40 and carries the-,removable valve seat l1 in which the ballvalve 42 seats. The cross rodl acts -to limit the vertical-movement 4ofthe ball waive d2. The lower part 39 of the valve cas-ing B has openingsil fer adn ssi-'on of fluid to the plunger. Tf'he lovve-r section l5 oflthe hollow pump plunger is carried by the lower lpart '39 off the valvecasing B. vThis lower section l5 is perforated as shown at 46., and hasthe longitudinally extendinggroove if? for .receivingpins 18 whichAproject in* Ward'ly from 'the fixed tube or sleeve 145 through which the`lower section 45 recipro- Cates. -The groeve -l-r' and the pins 48 arearranged to permit free reciprocate-ion of the pump plunger for a fullstroke While Ypreventing rotation Aof `'the lower hollow section of theplunger. i Y y vThe intermediate hol-'low plunger section 35 carries thespaced lapa-rty Washers or collar members 49, intermediatewhicharedisposed the packing rings `ot anjjfsuitafble compressibleVpacking material. Sincethe lower plunger section l5 is 'held againstrotationby the cooperative relationship of groove 47 and the pins 11i-8,fit avillbe seen 'that 'by rotating `the pump rod 23 fa'relativerotatieA ai! the and valve casings A a compre.C sion .on fthe pumppacking 50 carried by 'the intermediate plunger section 35, this actionwill be effected, causbeing :due .to lthe:oppositely threaded ends 36and 37 ci' the `intermediate section 35.

It will et course, 'be understood that sui-table 'loc'lnng means may beprovided Vto prevent relative rotation ofthe upper and Flower parts of.the respective -check valve casi-ngs A and B and that locking devicesmay also Ybe provided -topre-vent ro .it-ion of the valve casing A with.respect to the upper Vplunger section '25 an d 'to Ipreventrotation ofthe valve casing B with respect -to lthelovversection 4.5.

lt will also be noted that a Lrotary,moveL `nient o' the lo'u'er plunger.sectionl is -prevented at all verticalpositions oic the plunger .inmaking a comp'letefstrolre and that, there tore, the packing rings maybeexpanded at any lpeint :in the -stro'lre 'of the pump. This isimportant-since it permits the packing rings to be expanded Vout 5to theWall 4ofthe Working Ibarrel atthe Vpeints Where the `Wall is avorn, andrthus v4insmres a tight fit of the packing throughoutthe entire pumpYstr-olie.

It Will Vi-urtherbeV .apparent rthat `since *the rod "23 `i-s normally ytliesurace of the v n andthe lower 'plungei section 4`5l-is restrainedffromfrotation attire n or a release or. "com-pres;

held against :rotation at bottom of the well, no undesirable relativerot-ation of the pumping rod sections will occur.

In operation the liquid from the well enters the lower working barrelthrough the check valve 6, and thence enters the lower section of thereciprocating pump plunger, whence it rises through the check valvecasing B and is forced by reciprocation of the plunger and the packingto rise through the check valve casing A and be delivered through thecheck valve 27 to the well casing above the working barrel, where theWeight of the liquid is carried by the closure member 18 and preventedfrom acting against the reciprocating packing 50. V

From the foregoing it will be appreciated that I have provided a novelpumping apparatus which is so constructed as to permit repeatedadjustments of the pump packing and to enable the adjustment of thepacking at any point in the pump stroke. This apparatus will, therefore,function efficiently over long periods of time without necessitating theremoval of the working barrel and the replacement of the worn parts.

Having thus described my invention, what I claim is 1. In a pumpingapparatus, the combinaf tion of a working barrel, a reciprocable hollowplunger mounted in said working barrel, a packing carried by saidplunger for engagement with said working barrel, said hollow plungerincluding means for expanding said packing, and holding meanscooperating with said plunger throughout the. entire stroke thereof,whereby expansion of the packing at any point in the stroke of saidplunger may be effected.

2. In a. pumping apparatus, the Vcombination of a working barrel, ahollow plunger reciprocable within said working barrel, said hollowplunger including an upper section, a lower section, and an intermediatesection, said sections being arranged for relative rotation, a packingmember carried by said intermediate section adapted to be expanded byrelative rotation of said sections, and means for holding the lowersection Vagainst rotation during the entire stroke of said plunger topermit said upper and intermediate sections to be"rotatedrclativethereto.

3. In a pumpingapparatus, the combinai tion of a reciprocable sectionalhollow plunger mechanism, a working barrel within which said hollowplunger mechanism reciprocates, and means carried by said working barrelcooperating with one section of said plunger for preventing rotation ofsaid section of said reciprocable hollow plunger mechanism in allvertical positions of the plunger during a normal stroke thereof.

4. In a pumping apparatus, the combination of aworkingbarrel, asectional hollow plunger reciprocably mounted in said Working barrel,certain sections of said hollow plunger being constructed to rotaterelative to other sections thereof, and means carried by said workingbarrel for holding one of said sections against rotation at all verticalpositions of said sections. y

5. In a pumping apparatus, the combination of a. lower working barrel,ran upper working barrel, a closure member carried by the lower'end ofthe upper Working barrel constructed to seat on the upper end of thelower working barrel, a reciprocable sectional pump plunger mounted insaid working barrel, and means carried by said closure member forpreventing rotation'of the lower section f of saidpump plunger.

6. In a pumping apparatus, the combination of a working barrel, a pairofreciprocable check valve'casings mounted in said working'barrel, meansconnecting said valve casings constructed to permit relative rotationthereof, a compressible packing disposed between said valve casings, andmeans carried by 'said working barrel for preventing rotaf Y tion of oneof said valve casings.

7 In a pumping apparatus, the combination of a well casing, a lowerworking barrel, an upper working barrel seated on the lower workingbarrel, a Y kreciprocable plunger mounted in the upper working barrelfor re-` ceiving liquid `from the lower Working barrel and deliveringthe liquid to the casing above the upper working barrel, a packingmember fitted in the upper end of the upper working barrel forpreventing return of liquid from the casing into the upper workingbarrel, said reciprocable plunger being of sectional formation andcertain of the sections thereof constructed for relative rotary movementwithin the upper working barrel.

FRANK EARNEsT CARLBERG. p

